Apparatus for cooling molten or emulsion-like substances on a cooling-surface.



G. CHRISTENSEN.

AI' PARATUS FOB COOLING MOLTEN 0R EMULSION LIKE SUBSTANCES ON A COOLINGSURFACE. APPLICATION FILED FEB. 8,1913.

1,130,670. Pa ented Mar. 2,1915.

UNITED. sTArns PrgENT OFFICE.

CHRISTEN CHRISTENSEN, 0F COPENHAGEN, DENMARK.

APPARATUS FOR COOLING MOLTEN 0R EMULSION-LIKE SUBSTANCES ON A COOLING-SURFACE.

Specification of Letters Patent.

Patented Mar. 2, 1915..

Application filed Februaryv 8, 1913. Serial No. 747,176.

To all whom it may concern:

Be it known that I, CHRrs'rnN CHRISTEM SEN, subject of the King ofDenmark, residing at (Oster Farimagsgade 73, Copenhagen, Denmark, haveinvented new and useful Improvements in Apparatuses for Cooling Moltenor Emulsion-Like Substances on a Cooling-Surface, of which the followingis a specification.

The present invention refers to an apparatus for spreading and smoothingmolten or emulsion-like substances, such as cocoafat and margarinrespectively as a coating of desired thickness. on a cooling surface.Several types of such apparatus are known and the essential feature ofthe new apparatus is the provision of two mutually independent members,adjustable relatively to one another and to the cooling surface, one ofthe said'members serving to apply the substance while the other one,being held at a certain distance from the cooling surface, serves todetermine the thickness of the coating and to smooth this coating on thecooling surface. One or both of said two members may, if desired, beheated by suitable means.

The cooling surface may be shaped as a cylinder, a truncated cone, acircular ring or a plane table, and it may either be movable relativelyto the stationary coating and smoothing members, or it may be at rest,while these 'are moving.

A manner of execution with rotary cylindrical cooling surface isrepresented on the drawing.

Figure 1 showing the apparatus, viewed in the direction of the axis ofthe cooling surface, partly in section, while Fig. 2 shows the apparatusin plan also partly in section.

The cooling surface K is shaped asa hollow cylinder, rotating about ahollow shaft.

through which the cooling medium, for instance a freezing mixture, isintroduced into and discharged from the cavity of the cylinder. Themember serving to spread the molten substance consists of a hollow bodyor sprinkler T, having on the side facing the cooling surface a seriesof openings a, arranged sloping in relation to a spreading surface Sprovided below. The tubular wall of the sprinkler is considerablythicker where the openings a are located, so that the latter form narrowchannels, and the size and shape of the openings may be varled,according to what is most suitable for the substances to be treated inthe apparatus. By having the openings a slantlng toward the spreadingsurface S, the molten material, pressed out as small 'ets from theopenings a, is caused to hit t e spreading surface in such a manner thatit is splashed up against the cooling surface as a thin coating andadheres thereto. The spreading surface may be .in fixed connection withthe supply tube T, or it may be separated therefrom so that it may beadjusted at different angles or may be removed entirely, all accordingto what best suits the molten substance in question.

The regulator R, serving to determine the thickness of the coating andto smooth it on the cooling surface, is placed above the spreadingsurface S and is carried by two arms A which may be turned alongv thecooling surface and may be maintained at any desired level, for instanceby means of arms 0, as shown on the drawing.

The clearance between the cooling surface and the curved side of theregulator R, facing the cooling surface, determine the thickness of thecoating, and a downwardly directed sharp edge 7 on the regulator Rserves to remove any surplus of substance deposited on the coolingsurface. The regulator' R may suitably be arranged as a hollow body, asit may then be kept heated by the introduction into its cavity of a heattransmitting medium, whereby any surplus of substance removed from thecooling surface by the said member will melt and drip down on thespreading surface from where it will again be deposited at some otherpoint of the cooling surface.

In order to insure the substance removed being actually conveyed down tothe spreading surface the regulator R may suitably be fitted with adownwardly directed flange g, as shown on the drawing. The regulator Rmay be made adjustable in many manners relatively to the spreadingsurface S and the cooling surface, so that not only its distance abovethe spreading surface may be varied by adjustment of the arm 0, but alsothe distance of the regulator R from. the cooling surface, and the anglebetween the tangent of the cooling surface and the said drops, it willbe smoothed on the cooling surface by passing the heated regulators Thelayer deposited and cooled --on the cooling surface is successivelyremoved therefrom in known manner by means of a knife k, located at sucha point that the layer may remain for a suitable time on the coolingsurface.

If it is found desirable to keep the sprinkler T in a heated conditionsimilar means as mentioned in connection with regulator B may be usedfor this purpose.

Having now particularly described and ascertained the nature of my saidinvention and in what manner the same is to be performed, I declare thatwhat I claim 1s In an apparatus for cooling warm fluid matter such asmolten substances or heated fatty emulsions, the combination with acooling surface of a hollow sprinkler adapted to be adjusted relativelyto same and having at its side, facing the cooling surface, finedischarge apertures directed toward the cooling surface and serving tospread the substance onto the same, and a hollow regulator adapted to beadjusted circumferen t-ially as Well as radially to said sprinkler andsaid cooling surface and to be heated by means of a heat transmittingfluid being passed through its cavityand serving to remove any surplusof the substance deposited. p

The foregoing specification signed at Copenhagen, this 21st day of January. 1913.

CHRISTEN CHRISTENSEN.

In presence of-'- OvI Gmnsme, Jumus LEHMANN-

